sencha touch 2.2.0 alpha

I am real excited to see the Windows 8 support and was curious what the target environment is as Windows 8 Surface has multiple browsers and a native javascript engine. is the intention to develop a native app that will look like a sencha ipad app that has an Objective-C wrapper except the wrapper is c#? if so should I be trying to open the examples in IE10 in the desktop browser or the RT (metro) browser.I am a long time .net developer and Sencha fan and really want to get this working for some upcoming developer events where I present Sencha. I understand it is alpha but as I said this is an exciting development !